Shopping cart shelf



FIG. 1 is a front perspective view for a shopping cart shelf showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a side view thereof, with the other side being a mirror image;

FIG. 4 is a top, rear perspective view thereof;

FIG. 5 is a top, side perspective view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a top plan view thereof.

In the drawings, the broken lines depict environmental subject matter only and form no part of the claimed design. 

The ornamental design for a shopping cart shelf, as shown and described. 